Microstructure, hardness and defect structure of the He irradiated ODS ferritic steel
文献类型：期刊论文
| 作者 | Gao, R.1 ; Cheng, B.2; Zeng, L. F.1,2; Miao, S.1,2; Hou, J.1,2; Zhang, T.1; Wang, X. P.1; Fang, Q. F.1; Liu, C. S.1
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| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
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| 出版日期 | 2017-01-15 |
| 卷号 | 691期号:无页码:653-658 |
| 关键词 | Ods Steel He Ions Irradiation Hardness Positron Annihilation |
| DOI | 10.1016/j.jallcom.2016.08.312 |
| 文献子类 | Article |
| 英文摘要 | In this paper, the microstructure, hardness and defect structure of the oxide dispersion strengthened Fe-16Cr-2W-0.5Ti-0.4Y(2)O(3) (designated as ODS-16Cr) and Fe-16Cr-2W-0.5Ti-0.4Y(2)O(3)-4Al-1Zr (ODS-16Cr-Al/Zr) steels irradiated with different doses of He ions were investigated by means of TEM, nanoindentation and positron annihilation spectroscopy. In the both alloys, nano-scale bubbles appeared in the vicinity of the precipitates as well as the grain boundaries. High density dislocation networks were observed as well. Moreover, the hardness of the irradiated steels increased distinctly with increasing He implantation. The irradiation hardening in the ODS-16Cr-Al/Zr alloy is more prominent in comparison with the ODS-16Cr alloy. The positron annihilation results illustrated that concentration of vacancy clusters of ODS-16Cr-Al/Zr steel is higher in the near surface under the larger dose, which is one reason of stronger irradiation hardening below the surface of 300-400 nm. The higher concentration of vacancies or vacancy clusters in ODS-16Cr-Al/Zr samples can be attributed to the fact that the solute Al atoms can effectively trap interstitials, which suppresses the annihilation of interstitials with vacancies. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS关键词 | POSITRON-ANNIHILATION SPECTROSCOPY ; BEAM IRRADIATION ; HELIUM ; F82H ; SYSTEMS ; ALLOYS ; RATES |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000386227900081 |
| 资助机构 | National Natural Science Foundation of China(11175203 ; National Natural Science Foundation of China(11175203 ; National Natural Science Foundation of China(11175203 ; National Natural Science Foundation of China(11175203 ; Institute of Modern Physics (IMP) in Lanzhou, China ; Institute of Modern Physics (IMP) in Lanzhou, China ; Institute of Modern Physics (IMP) in Lanzhou, China ; Institute of Modern Physics (IMP) in Lanzhou, China ; 11375230) ; 11375230) ; 11375230) ; 11375230) ; National Natural Science Foundation of China(11175203 ; National Natural Science Foundation of China(11175203 ; National Natural Science Foundation of China(11175203 ; National Natural Science Foundation of China(11175203 ; Institute of Modern Physics (IMP) in Lanzhou, China ; Institute of Modern Physics (IMP) in Lanzhou, China ; Institute of Modern Physics (IMP) in Lanzhou, China ; Institute of Modern Physics (IMP) in Lanzhou, China ; 11375230) ; 11375230) ; 11375230) ; 11375230) |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/30145]  |
| 专题 | 合肥物质科学研究院_中科院固体物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, R.,Cheng, B.,Zeng, L. F.,et al. Microstructure, hardness and defect structure of the He irradiated ODS ferritic steel[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,691(无):653-658. |
| APA | Gao, R..,Cheng, B..,Zeng, L. F..,Miao, S..,Hou, J..,...&Liu, C. S..(2017).Microstructure, hardness and defect structure of the He irradiated ODS ferritic steel.JOURNAL OF ALLOYS AND COMPOUNDS,691(无),653-658. |
| MLA | Gao, R.,et al."Microstructure, hardness and defect structure of the He irradiated ODS ferritic steel".JOURNAL OF ALLOYS AND COMPOUNDS 691.无(2017):653-658. |
入库方式： OAI收割
来源：合肥物质科学研究院
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